期刊
ANTIBIOTICS-BASEL
卷 8, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/antibiotics8010025
关键词
NorA efflux pump; major facilitator super family; bioinformatics; molecular docking; S. aureus
资金
- Ministerio de Economia Industria y Competitividad [CTQ2016-79255-P, COOPB20237]
- MINECO [IJCI-2016-27503]
- Spanish MCIU [FJCI-2016-29227]
Multidrug efflux systems play a prominent role in medicine, as they are important contributors to bacterial antibiotic resistance. NorA is an efflux pump transporter from the major facilitator superfamily that expels numerous drug compounds across the inner membrane of Staphylococcus aureus (S. aureus). The design of novel inhibitors to combat drug efflux could offer new opportunities to avoid the problem of antibiotic resistance. In this study, we performed molecular modeling studies in an effort to discover novel NorA efflux pump inhibitors. A group of over 673 compounds from the PubChem database with a high (>80%) level of similarity to the chemical structure of capsaicin was used to study the binding affinity of small molecule compounds for the NorA efflux pump. Ten potential lead compounds displayed a good druggability profile, with one in particular (CID 44330438) providing new insight into the molecular mechanism of the inhibition of major facilitator superfamily (MFS) efflux pump transporters. It is our hope that the overall strategy described in this study, and the structural information of the potential novel inhibitors thus identified, will stimulate others to pursue the development of better drugs to tackle multidrug resistance in S. aureus.
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